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Standard Function Desktop Electronic Calculator 12 Digits Large Display Solar and Battery Dual Power Supply Metal Panel for School Home Office Business

features extra large 12 digits display and multiple keys. It equipped with four standard arithmetic functions, change sign (+/-)key, GT key, square root key, 4 memory keys, mark-up/mark-down key(MU), and percent key to meet your kinds of needs. Features: Easy-to-read, clear and extra large 12 digits display, great for large calculations. Dual power supply, solar and back-up battery(not included) to prolong using time. Durable metal panel, wide keyboard and comfortable plastic keys, easy for operation. GT function for calculate the total sum of amounts generated. 4 memory keys, square root key, change sign key(+/-), mark-up/mark-down key(MU) and percent key, make it most useful for users. Ergonomically tilted design, comfortable for input and reading data. Auto power-off, low power consumption, environmentally friendly. Perfect for school, office work and home use.